P050B
DTC P050B COLD START IGNITION TIMING PERFORMANCE1. OUTLINE OF DIAGNOSIS
Detect malfunctions of the catalyst advanced idling retard angle control.
Judge as NG when ECM is not controlling the angle properly during catalyst advanced idling retard angle control.
Judge as NG when actual retard amount is under the specified value at cold start.
2. ENABLE CONDITION
3. GENERAL DRIVING CYCLE
Perform the diagnosis at cold start.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the following conditions are established with diagnosis enable conditions successful.
Time Needed for Diagnosis: 5000 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
Time Needed for Diagnosis: 1000 ms